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Re: PATCH: Accommodate BP return value from __errno_location ()

To: drepper at cygnus dot com (Ulrich Drepper)
Subject: Re: PATCH: Accommodate BP return value from __errno_location ()
From: Greg McGary <greg at kayak dot mcgary dot org>
Date: 26 Jun 2000 18:49:53 -0700
Cc: libc-hacker at sourceware dot cygnus dot com
References: <200006270140.SAA01296@kayak.mcgary.org> <m34s6fopz4.fsf@otr.mynet.cygnus.com>

Ulrich Drepper <drepper@redhat.com> writes:

> Greg McGary <greg@kayak.mcgary.org> writes:
> 
> > PUSH_ERRNO_LOCATION_RETURN is defined in the new file
> > libc/sysdeps/i386/bp-asm.h that was checked in previously.
> > 
> > PUSH_ERRNO_LOCATION_RETURN and POP_ERRNO_LOCATION_RETURN expand
> > to nothing, and BP_SYM does nothing for non-BP builds.
> 
> Where are the definitions to define the macros to nothing?

They were already present in sysdeps/i386/bp-asm.h:

#  else /* !__BOUNDED_POINTERS__ */
...
#   define PUSH_ERRNO_LOCATION_RETURN
#   define POP_ERRNO_LOCATION_RETURN

#  endif /* !__BOUNDED_POINTERS__ */

> If it compiled without BP it's OK.

Yes, it does.

References:
- PATCH: Accommodate BP return value from __errno_location ()
  - From: Greg McGary
- Re: PATCH: Accommodate BP return value from __errno_location ()
  - From: Ulrich Drepper

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